How did Henry frick build his empire?

Henry Frick built his empire primarily through the steel industry in the late 19th century. He started as a coal and coke manufacturer, supplying vital materials to Carnegie Steel, which he later joined as a partner. Frick's aggressive business strategies, including cost-cutting measures and labor suppression, helped him expand his operations and increase profits. His successful management and investments in various industries, including railroads and real estate, further solidified his wealth and influence.